Rock Hudson
Dana Stribling
Kirk Douglas
Brendan 'Bren' O'Malley
Dorothy Malone
Belle Breckenridge
Joseph Cotten
John Breckenridge
Carol Lynley
Melissa 'Missy' Breckenridge
Neville Brand
Frank Hobbs
Regis Toomey
Milton Wing
James Westmoreland
Julesburg Kid
Adam Williams
Calverton
Jack Elam
Ed Hobbs
John Shay
Bowman
Gregorio Acosta
Singing ranch hand (uncredited)
Manuel Alvarado
Bartender saloon (uncredited)
José Chávez
Man at Cock Fight (uncredited)
Arturo Fernández
Man in saloon (uncredited)
Peter Helm
Man in saloon (uncredited)
Regino Herrera
Man in saloon (uncredited)
Jackboy
Dog (uncredited)
Vicente Lara
Man in saloon (uncredited)
Margarito Luna
Jose (uncredited)
Moreno López
Man in saloon (uncredited)
Rubén Márquez
Man in saloon (uncredited)
Amelia Rivera
Woman in saloon (uncredited)
Ángela Rodríguez
Woman shouts out in saloon (uncredited)
José Torvay
Rosario (uncredited)
Jorge Treviño
Mexican trader (uncredited)
Manuel Vergara 'Manver'
Man at Cock Fight (uncredited)
Isabel Vázquez
Old woman in trading store (uncredited)